study guide for Light test 12/2010
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what are the three characteristics of light? | it is invisible unless detected; detection of light requires interaction with matter (dust, eyes); light spreads out as it moves from a light source
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| what does opaque mean? | no light can pass through
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| what does transclucent meant? | some light can pass through
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| what does transparant mean? | all light can pass through
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| what is a shadow? | the absence of light
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| what is the visible spectrum? | a mix of colored light; white or visible light
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| what is the correct order of colors in the visible spectrum? | ROY G BIV
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| what color is the most easily refracted color of the visible spectrum? | blue
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| what color is not as easily seen by the human eye? | red
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| how do you see certain colors when looking at them? ex: why do we see green when looking at grass? | grass reflects green and absorbs the all the other colors
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| how do we see white? | white absorbs no colors of the spectrum
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| how do we see black? | black absorbs all the colors of the spectrum
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| what are the three primary colors of light? | red green blue
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| what is a lens? | an object, usually made of glass, that is made to refract light in a specific way
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| what are the two main types of lenses? | convex (makes objects look larger) and concave (makes objects look smaller)
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| what type of lens does the human eye have? | convex
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| what colors have the longest wavelength and the shortest? | longest: red shortest: blue
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| what does a triangular prism do? | changes white light to make colored light
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| what are the five main sources of light? | fire, lightening, sun, lightening bugs, light bulbs
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| relfection | the bouncing of light from a surface
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| refraction | the bending of light that moves from one material to another
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| crest | the top of the wave
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| trough | the bottom of the wave
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| wavelength | the distance from crest to crest
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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